5BPU

Crystal structure of Norrin, a Wnt signalling activator, Crystal Form I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.219 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structure and functional properties of Norrin mimic Wnt for signalling with Frizzled4, Lrp5/6, and proteoglycan.

Chang, T.H.Hsieh, F.L.Zebisch, M.Harlos, K.Elegheert, J.Jones, E.Y.

(2015) Elife 4: e06554

  • DOI: https://doi.org/10.7554/eLife.06554
  • Primary Citation of Related Structures:  
    5BPB, 5BPQ, 5BPU, 5BQ8, 5BQB, 5BQC, 5BQE

  • PubMed Abstract: 

    Wnt signalling regulates multiple processes including angiogenesis, inflammation, and tumorigenesis. Norrin (Norrie Disease Protein) is a cystine-knot like growth factor. Although unrelated to Wnt, Norrin activates the Wnt/β-catenin pathway. Signal complex formation involves Frizzled4 (Fz4), low-density lipoprotein receptor related protein 5/6 (Lrp5/6), Tetraspanin-12 and glycosaminoglycans (GAGs). Here, we report crystallographic and small-angle X-ray scattering analyses of Norrin in complex with Fz4 cysteine-rich domain (Fz4CRD), of this complex bound with GAG analogues, and of unliganded Norrin and Fz4CRD. Our structural, biophysical and cellular data, map Fz4 and putative Lrp5/6 binding sites to distinct patches on Norrin, and reveal a GAG binding site spanning Norrin and Fz4CRD. These results explain numerous disease-associated mutations. Comparison with the Xenopus Wnt8-mouse Fz8CRD complex reveals Norrin mimics Wnt for Frizzled recognition. The production and characterization of wild-type and mutant Norrins reported here open new avenues for the development of therapeutics to combat abnormal Norrin/Wnt signalling.


  • Organizational Affiliation

    Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Norrin
A, B, C, D, E
A, B, C, D, E, F
122Homo sapiensMutation(s): 0 
Gene Names: NDPEVR2
UniProt & NIH Common Fund Data Resources
Find proteins for Q00604 (Homo sapiens)
Explore Q00604 
Go to UniProtKB:  Q00604
PHAROS:  Q00604
GTEx:  ENSG00000124479 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ00604
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
(GGL)EEEEEEG [auth H]7synthetic constructMutation(s): 0 
Sequence Annotations
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  • Reference Sequence

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
(GGL)EEEH [auth I]4synthetic constructMutation(s): 0 
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.219 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.37α = 90
b = 79.1β = 90
c = 234.34γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
Aimlessdata scaling
PHENIXphasing
PHENIXrefinement
Cootmodel building
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomG0900084
Cancer Research UKUnited KingdomC375/A10976
Wellcome TrustUnited Kingdom090532/Z/09/Z

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2015-07-22
    Changes: Database references
  • Version 1.2: 2015-07-29
    Changes: Database references
  • Version 1.3: 2017-09-13
    Changes: Advisory, Author supporting evidence
  • Version 1.4: 2019-02-20
    Changes: Advisory, Data collection, Derived calculations
  • Version 1.5: 2019-07-10
    Changes: Data collection